Home / 640,861.20-961,208.37-167,583.06

Finding the Fourth Proportional to 640,861.20, 961,208.37 and 167,583.06

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Solution

The fourth proportional to 640,861.20, 961,208.37 and 167,583.06 is: 251,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,861.20 : 961,208.37 = 167,583.06 : x
  2. Step 2: Convert to fraction form
    640,861.20/961,208.37 = 167,583.06/x
  3. Step 3: Cross multiply
    640,861.20x = 961,208.37 × 167,583.06
  4. Step 4: Simplify right side
    640,861.20x = 161,082,239,942.21
  5. Step 5: Solve for x
    x = 161,082,239,942.21/640,861.20
  6. Step 6: Final answer
    x = 251,352.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.